spectrogram

🇬🇧/ˈspektrəʊɡræm/ 🇺🇸/ˈspektrəˌɡræm/ 28
a photographic or other visual or electronic representation of a spectrum.

noun [专属名词]光谱图;声谱图;光谱照片

The term "spectrogram" is borrowed from optics .
“声谱图”一词是从光学借来的。

单词造句:
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Why reducing the window length, causes empty rows in spectrogram? 为什么减少窗口长度,使空图行吗?
Some methods of judging mechanical fault using spectrogram are introduced. 介绍了利用波谱图判断机械故障的几种方法。